Oldest Piece On Earth

The Saglek Block rocks of northern Labrador have been submerged beneath water, sucked into Earth's interior, twisted, squeezed and torn by tectonic forces, wrenched upward, weathered by wind and waves, and otherwise subjected to every imaginable form of battering a piece of stone can endure in the course of 3.95 billion years.

Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in western Australia is the oldest known piece of our planet, dating to 4.4 billion years ago.

The Saglek Block rocks of northern Labrador have been submerged beneath water, sucked into Earth's interior, twisted, squeezed and torn by tectonic forces, wrenched upward, weathered by wind and waves, and otherwise subjected to every imaginable form of battering a piece of stone can endure in the course of 3.95 billion years.

Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in western Australia is the oldest known piece of our planet, dating to 4.4 billion years ago.